学习GUI组件显示

使用类JButton，JLabel,JCheckBox,JRadioButton,JcomboBox来创建GUI对象。

package com.studyJava.stringStudy;

import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
/**
 * GUI展示
 * @author ywf
 *
 */
public class TestJframe {

    public static void main(String[] args){
        JButton jbtOk = new JButton("OK");
        JButton jbtCancel = new JButton("cancel");//按钮
        JLabel jlbName = new JLabel("Enter your name");//标签
        JTextField jtfName = new JTextField("Type Name here");//文本域
        JCheckBox jchkBold = new JCheckBox("Bold");//复选框
        JCheckBox jchkItalic = new JCheckBox("Italic");
        JRadioButton jrbRed = new JRadioButton("Red");//单选框
        JRadioButton jrbYellow = new JRadioButton("Yellow");
        String[] str ={"Freshman","Sophomore","Junior","Senior"};
        JComboBox jcbColor = new JComboBox(str);//组合框
        JPanel panel = new JPanel();//创建一个面板对象
        panel.add(jbtOk);
        panel.add(jbtCancel);
        panel.add(jlbName);
        panel.add(jtfName);
        panel.add(jchkBold);
        panel.add(jchkItalic);
        panel.add(jrbRed);
        panel.add(jrbYellow);
        panel.add(jcbColor);
        JFrame jframe = new JFrame();
        jframe.add(panel);
        jframe.setSize(400, 300);
        jframe.setLocation(400, 300);
        jframe.setTitle("JAVA");
        jframe.setVisible(true);
        jframe.setDefaultCloseOperation(jframe.EXIT_ON_CLOSE);
    }
}